Spacewalkers Complete Installation Of Ammonia Pump Module | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

AMA Drone Report

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday

Airborne-Thursday

Airborne-Friday

Airborne-Unmanned w/AUVSI

Airborne On ANN

AMA 06.22.17

Airborne 06.26.17

Airborne 06.27.17

Airborne 06.28.17

Airborne 06.22.17

Airborne 06.23.17

Airborne-Unmanned 06.27.17

Airborne-YouTube

AMA 06.22.17

Airborne 06.26.17

Airborne 06.27.17

Airborne 06.28.17

Airborne 06.22.17

Airborne 06.23.17

Airborne-Unmanned 06.27.17

XPONENTIAL Innovation Preview -- www.allthingsunmanned.com

Fri, Dec 27, 2013

Spacewalkers Complete Installation Of Ammonia Pump Module

Cooling System Now Considered To Be 'Fully Operational' Following Repairs

Spacewalkers Rick Mastracchio and Mike Hopkins completed a second spacewalk to install a spare ammonia pump module on Christmas Eve. The U.S. Quest airlock began repressurization at 1423 EDT Tuesday signaling the official end of their spacewalk.

Tuesday’s main tasks included the removal and installation of a spare pump module. The first task was to remove the spare pump module from the space station’s External Stowage Platform-3. After that was completed, the module was bolted to the S1 truss and connected to Loop A of the station’s external Active Thermal Control System.

Hopkins attached himself to the Canadarm2 and took a ride to the worksite. Mastracchio tethered himself to the station and translated to the S1 truss to assist his partner. Japanese astronaut Koichi Wakata operated the Canadarm2 from inside the Destiny laboratory. While doing the connection work, the duo demated ammonia fluid lines from a jumper box that enabled ammonia flow during the repair spacewalks. After experiencing some difficulty disconnecting a fluid line the spacewalkers reported seeing ammonia flakes escaping a valve. As a precaution, mission controllers asked the spacewalkers to inspect their spacesuits for possible ammonia contamination. Once they were back in the Quest airlock the duo conducted more ammonia decontamination procedures on their spacesuits. All four fluid lines were successfully reconnected to the newly installed pump module restoring ammonia flow.

Afterward, Hopkins and Mastracchio completed electrical connections to the pump module. Power was successfully restored to the ammonia pump module. Flight controllers in the Mission Control Center at NASA's Johnson Space Center in Houston successfully restarted the new pump Tuesday night. The pump module controls the flow of ammonia through cooling loops and radiators outside the space station, and, combined with water-based cooling loops inside the station, removes excess heat into the vacuum of space. The new pump now is considered fully functional.

The duo was originally scheduled to finish the installation work on Monday before mission controllers detected a spacesuit configuration issue at the end of Saturday’s spacewalk, in which the spacewalkers removed a faulty pump that experienced a problem with its internal flow control valve Dec. 11.

The suspect pump was removed from the starboard truss and parked in a temporary location on the station’s Mobile Base System rail car where it can stay until at least next June. Managers decided an extra day of preparation was necessary to get a backup spacesuit ready for Mastracchio.

(Pictured: Top: NASA astronaut Rick Mastracchio participates in the first Expedition 38 spacewalk designed to troubleshoot a faulty coolant pump on the International Space Station. Bottom: Astronaut Mike Hopkins prepares to attach himself to a foot restraint on the Canadarm2 outside the International Space Station. NASA images)

FMI: www.nasa.gov

Advertisement

More News

ANN's 2017 AirVenture Innovation Preview is Going To Be A Stunner!

Early Confirmations Show An Amazing Assortment of Exciting New Products and Technologies! It may be the most impressive line-up of new technology to ever be featured in our Innovat>[...]

Airborne 06.27.17: SpaceX Doubles!, Sean Tucker Retirement, FA Changes

Also: Shoreham Update, Aero-Calendar, AUVSI, Fighter Pilots, André Borschberg, Airport Crimes, Drone Conference SpaceX, in the midst of a greatly accelerated launch pace, pu>[...]

Airborne-Unmanned 06.27.17: AUVSI On Senate Bill, Intel Olympics, NIGHTWARDEN

Also: DRL Winner $$, Kespry Enters Insurance Sector, Drone Sim Market, Automated Vehicles Symposium Brian Wynne, president and CEO of AUVSI, issued a statement on the unmanned airc>[...]

AMA Drone Report 06.22.17: FAA Reauthorization, Rotor Riot Int'l, DRL on ESPN

Also: Drones at Oshkosh!, Drone Regulatory Effort, AMA Drone Report-Help Wanted, Aero-TV: MultiGP Drone Racing The House of Representatives has published initial language to reauth>[...]

U.S. Rocketry Students Impress At Internationals, Win Gold

Students From Festus, MO Become Third Consecutive U.S. Team To Take Top Spot The 10-student team from Festus High School in Festus, MO bested the world's best rocketry teams and to>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2017 Web Development & Design by Pauli Systems, LC